Sowing device for potato breeding

Abstract

The utility model provides a seeding device for potato breeding, which belongs to the technical field of agricultural breeding and comprises a base, a ditching part is arranged in front of the base, soil covering parts are symmetrically arranged behind the base, a seeding box is fixedly mounted at the top of the base, and a feeding component for sequentially sowing seeds is embedded into the side wall of the seeding box. The feeding assembly penetrates through the inner cavity of the base and extends to the bottom, the multiple screening rollers rotate at the same time through the linkage assembly, and through screening of the multiple screening rollers which are parallel to one another and rotate at the same time, potatoes meeting specifications fall into the bottom of the seeding box through the space between every two adjacent screening rollers; the slope is arranged between the bottom of the seeding box and the feeding assembly, so that the potatoes meeting the standard slide into the area where the feeding assembly is located through the slope, the potatoes are input into a trench through the plurality of seeding bowls which continuously and circumferentially move, and the quality of potato breeding is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural breeding, in particular to a sowing device for potato breeding. Background Art

[0002] Potato is an annual herbaceous plant of the genus Solanum in the Solanaceae family. Potato breeding is a complex and multifaceted process, involving the application of traditional breeding techniques to modern genomics and synthetic biology. When planting potatoes, manual sowing is not only inefficient but also requires a lot of labor. Therefore, the sowing device can reduce the burden and improve the sowing efficiency at the same time.

[0003] A related art (publication number: CN221010753U) discloses a potato experimental seeder, which discloses a technical solution: by selecting potatoes of similar size and shape, and putting them into the inside of the storage hopper, and the through hole can only pass one potato, by adjusting the distance between the blocking mechanism and the through hole, when the potato is against the blocking mechanism, it is ensured that the bottom potato is placed on the blocking mechanism, and at the same time, the upper potato part protrudes from the bottom of the through hole, and then the intermittent feeding mechanism is started to push the potato on the blocking mechanism outward and drop it to the ground, and then the next one is added to the blocking mechanism, so that the interval sowing of potatoes can be completed, and at the same time, the machine is prevented from getting stuck or the potato is cut off.

[0004] In the above disclosed technical solutions, the following problems were found in the related technology: during the sowing process, if too many potatoes are sown at one location, the potatoes will affect each other within their growth range, thereby affecting the quality of the potatoes. In addition, when sowing potatoes, due to the large planting area, a large number of potatoes are carried. In order to ensure the quality of potato sowing, the specifications of the potatoes need to be screened. For this purpose, we have proposed a new type of sowing device for potato breeding.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background technology section of this application, and therefore may include prior art information that does not constitute known to ordinary technicians in the field. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology. In order to solve the potato sowing and spreading problem existing in the prior art, the utility model provides a potato breeding sowing device, which adopts a screening mechanism combined with a sequential sowing mechanism to improve the potato planting efficiency. The specific technical solution is as follows:

[0007] A sowing device for potato breeding comprises a base, a trenching member is arranged in front of the base, a soil covering member is symmetrically arranged at the rear of the base, a sowing box is fixedly installed on the top of the base, a feeding assembly for sequential sowing is embedded in the side wall of the sowing box, and the feeding assembly passes through the inner cavity of the base and extends to the bottom, a screening roller is sequentially rotatably arranged in the inner cavity of the sowing box, and a linkage assembly for driving the screening roller to rotate simultaneously is arranged on the outer wall of the sowing box.

[0008] In the above technical solution, the linkage assembly includes a movable shaft rotatably arranged on the outer wall of the sowing box, the movable shaft passes through the outer wall of the sowing box and is fixedly connected to the screening roller, the movable shaft extends out of the outer wall outside the sowing box and is sleeved with a gear, and two adjacent gears are meshed.

[0009] The feeding assembly includes a seeding barrel embedded in the side wall of the seeding box, and the seeding barrel passes through the inner cavity of the base and extends to the bottom. A central axis is rotatably arranged above the seeding barrel, and a support shaft is rotatably arranged below the base. Sprockets are sleeved on the outside of the support shaft and the central axis, and chains are sleeved on the outsides of the two sprockets. The chains are located inside the seeding barrel, and seeding bowls are arranged on the chains in sequence.

[0010] A driving shaft is rotatably arranged at the bottom of the base, ground wheels are arranged at both ends of the driving shaft, and a synchronous driving component is arranged at the bottom of the base for driving the supporting shaft to be linked with the driving shaft.

[0011] The synchronous drive assembly comprises two transmission wheels, which are respectively sleeved on the outside of the support shaft and the driving shaft, and the outside of the two transmission wheels is sleeved with a transmission belt.

[0012] A protective cover is embedded and installed on the inner wall of the seeding box, and the protective cover is arranged outside the chain.

[0013] The inner wall of the seeding box is obliquely provided with a material guide plate, the material guide plate is sleeved on the outside of the protective cover, and the material guide plate corresponds to the adjacent screening roller.

[0014] The trenching member comprises a support seat fixedly mounted on the front side wall of the base, a first movable column is slidably arranged in the inner cavity of the support seat, and a trenching device is fixedly mounted on the outer wall of the first movable column adjacent to the bottom.

[0015] The soil covering member comprises a connecting seat symmetrically arranged on both sides of the rear of the base, a second movable column is slidably arranged in the inner cavity of the connecting seat, and a soil covering plate is rotatably arranged at the bottom of the second movable column.

[0016] A connecting frame is fixedly mounted on the front side wall of the base.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the potato breeding sowing device:

[0018] 1. The potatoes that fall into the seeding box are screened by multiple parallel and simultaneously rotating screening rollers, so that the potatoes that meet the specifications fall into the bottom of the seeding box between two adjacent screening rollers, and then the potatoes are input into the ditch through multiple continuously moving seeding bowls, thereby ensuring the quality of potato breeding.

[0019] Second, as the chain moves in a circular motion inside the seeding barrel, the chain drives multiple seeding bowls to move in a continuous circular motion in sequence, and potatoes are sown in sequence through multiple continuously moving seeding bowls, thereby ensuring the smoothness of the potato sowing process, avoiding multiple potato breeding plants occupying the same position, preventing mutual interference, and thus ensuring the quality of potato planting.

[0020] 3. When the base moves on the planting ground through two ground wheels, the ground wheels drive the driving shaft to rotate, and the driving shaft drives the transmission belt to move through the externally sleeved transmission wheel, and the transmission belt drives the supporting shaft to rotate through another transmission wheel, so that the chain moves in a circular motion, thereby ensuring the efficiency of the potato planting process.

[0021] 4. The chain is protected by a protective cover to prevent the potatoes inside from falling into the planting box and affecting the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of a potato breeding sowing device of the utility model. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of a potato breeding sowing device of the utility model. Figure 2 ;

[0024] Figure 3 The base structure of the utility model is shown in FIG. Figure 1 ;

[0025] Figure 4 The base structure of the utility model is shown in FIG. Figure 2 ;

[0026] Figure 5 The utility model is a schematic diagram of the structure of the seed box Figure 1 ;

[0027] Figure 6 The utility model is a schematic diagram of the structure of the seed box Figure 2 ;

[0028] Figure 7 The utility model is a schematic diagram of the structure of the seed box Figure 3 ;

[0029] Figure 8 for Figure 3 A local enlarged view of point A;

[0030] Fig. 9 for Figure 4 A partial enlarged view of point B;

[0031] in, Figures 1 to 9 The correspondence between the reference numerals and the component names is: 1-base, 2-seeding box, 3-furrow opener, 4-chain, 5-guide plate, 6-screening roller, 7-covering plate, 8-seeding cylinder, 9-center shaft, 10-transmission belt, 11-ground wheel, 12-transmission wheel, 13-connecting frame, 14-support seat, 15-support column, 16-driving shaft, 17-first movable column, 18-second movable column, 19-connecting seat, 20-positioning bolt, 21-support shaft, 22-seeding bowl, 23-motor, 24-protective cover, 25-base, 26-rotating shaft, 27-movable shaft, 28-locking bolt, 29-second fixed seat, 30-bracket, 32-gear, 33-sprocket, 34-first fixed seat. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The following is a combination of specific implementation cases and attached Figure 1-9 The present invention is further described below, but the present invention is not limited to these embodiments.

[0034] A sowing device for potato breeding includes a base 1, and a furrowing member is arranged in front of the base 1. A soil covering member is symmetrically arranged at the rear of the base 1, and a sowing box 2 is fixedly installed on the top of the base 1. The sowing box 2 is fixed vertically to the surface of the base 1 by a support column 15. When the base 1 drives the sowing box 2 to sow seeds, the furrowing member located in front of the base 1 is used to furrow the land, so that the potato seeds fall into the opened furrow. Then, as the base 1 moves, the base 1 drives two symmetrical soil covering members to bury the potato seeds in the ground.

[0035] The side wall of the seeding box 2 is embedded with a feeding assembly for sequential sowing, and the feeding assembly passes through the inner cavity of the base 1 and extends to the bottom. The feeding assembly is embedded and installed at the rear of the seeding box 2, and the feeding assembly is connected to the inside of the seeding box 2, so that the potatoes inside the seeding box 2 fall on the seeding bowl 22 of the feeding assembly. The potatoes are sequentially sown in the trench through multiple seeding bowls 22 that move circumferentially, ensuring the number of potatoes in each growth area, avoiding excessive number of potatoes in the same area, and thus ensuring the planting quality of potatoes.

[0036] The inner cavity of the seed box 2 is provided with a screening roller 6 which rotates in sequence, and the outer wall of the seed box 2 is provided with a linkage assembly which drives the screening roller 6 to rotate simultaneously. Multiple screening rollers 6 with the same spacing are arranged in sequence from the front inner wall to the rear inner wall of the inner cavity of the seed box 2. The linkage assembly makes the multiple screening rollers 6 rotate simultaneously, so that the potatoes falling into the seed box 2 are screened by the multiple screening rollers 6 which are parallel to each other and rotate simultaneously, so that the potatoes meeting the specifications pass through the space between two adjacent screening rollers 6 and fall into the bottom of the seed box 2.

[0037] A slope is provided between the bottom of the seeding box 2 and the feeding assembly, so that potatoes meeting the standards slide down the slope to the area where the feeding assembly is located. The potatoes are input into the trench through a plurality of seeding bowls 22 that continuously move circumferentially, thereby ensuring the quality of potato breeding.

[0038] The linkage assembly includes a movable shaft 27 rotatably arranged on the outer wall of the seed box 2, and the movable shaft 27 penetrates the outer wall of the seed box 2 and is fixedly connected to the screening roller 6. Bearings are sequentially embedded and installed on the outer wall surfaces of both sides of the seed box 2, and the movable shaft 27 is embedded and installed inside the bearings, so that multiple movable shafts 27 located on the outer walls of both sides of the seed box 2 rotate parallel to each other. One end of the movable shaft 27 passes through the inner wall of the seed box 2 and is fixedly connected to one end of the corresponding screening roller 6, and the other end of the movable shaft 27 extends out of the seed box 2. The outer wall of the movable shaft 27 extending out of the seed box 2 is sleeved with a gear 32, and two adjacent gears 32 are meshed. The motor 23 is fixed on the outer wall of the seed box 2 through a motor seat, and the output shaft of the motor 23 penetrates the outer wall of the seed box 2 and extends to the inside and is fixedly connected to one end of the corresponding movable shaft 27, and the motor 23 is electrically connected to an external power supply through a wire.

[0039] The motor 23 drives multiple parallel screening rollers 6 to rotate simultaneously, and multiple gears 32 are fixedly sleeved on the outer wall of the movable shaft 27 outside the sowing box 2 through the mounting hole opened in the center, and the multiple gears 32 are meshed in sequence. That is, when one of the movable shafts 27 rotates, the multiple parallel screening rollers 6 rotate simultaneously through the multiple meshing gears 32 sleeved on the outside. The potatoes inside the sowing box 2 fall to the bottom of the sowing box 2 after screening. After that, the screened potatoes are sown through the feeding assembly, thereby ensuring the quality of the potatoes.

[0040] It is worth mentioning that the feeding assembly includes a sowing barrel 8 embedded in the side wall of the sowing box 2, and the sowing barrel 8 passes through the inner cavity of the base 1 and extends to the bottom. The sowing barrel 8 is fixedly embedded in the side wall of the sowing box 2 at the rear, so that the sowing box 2 is connected to the inside of the sowing barrel 8. The sowing barrel 8 passes through the inside of the base 1, so that potatoes are discharged from the inside of the sowing box 2 through the sowing barrel 8 to the outside for sowing. A central axis 9 is rotatably arranged above the sowing barrel 8. Fixed brackets 30 are fitted on both sides of the outer walls of the sowing barrel 8, so that the two brackets 30 are located on both sides of the sowing barrel 8 in parallel. Bearings are embedded and installed on the opposite surfaces of the two brackets 30, and the two ends of the central axis 9 are respectively embedded and installed in the inside of the two bearings.

[0041] A support shaft 21 is rotatably provided below the base 1. Two first fixed seats 34 located on the same horizontal straight line are fixedly installed on the lower surface of the base 1. Bearings are embedded and installed inside the two first fixed seats 34, and the support shaft 21 is embedded and installed inside the two bearings, and both ends of the support shaft 21 extend to the outside. Sprockets 33 are sleeved on the outside of the support shaft 21 and the central shaft 9, and chains 4 are sleeved on the outside of the two sprockets 33, and the chain 4 is located inside the seeding tube 8. The two sprockets 33 are fixedly sleeved on the outside of the support shaft 21 and the central shaft 9 through the mounting holes opened in the center. The two sprockets 33 rotate with the support shaft 21 and the central shaft 9 respectively. The chain 4 is sleeved on the outside of the two sprockets 33, and the chain 4 is meshed with the two sprockets 33 at the same time.

[0042] The seeding bowls 22 are arranged on the chain 4 in sequence. The two sprockets 33 are on the same vertical line. By rotating the support shaft 21, the support shaft 21 drives the sprocket 33 on the outer surface to rotate, so that the sprocket 33 drives the sprocket 33 outside the central shaft 9 to rotate through the meshing chain 4 on the outer surface. As the chain 4 circulates inside the seeding barrel 8, the chain 4 drives the multiple seeding bowls 22 to circulate in sequence and continuously. The potatoes are sown in sequence through the multiple continuously circulated seeding bowls 22, thereby ensuring the smoothness of the potato sowing process, and then ensuring the efficiency of the potato sowing process.

[0043] In addition, a driving shaft 16 is rotatably provided at the bottom of the base 1, and ground wheels 11 are provided at both ends of the driving shaft 16. Two second fixed seats 29 located in the same straight line are fixedly installed on the lower surface of the base 1. The insides of the two second fixed seats 29 are embedded with bearings, and the driving shaft 16 is also embedded and installed inside the two bearings, and the driving shaft 16 extends outside the bearings. Ground wheels 11 are fixedly sleeved on the outside of both ends of the driving shaft 16, and the base 1 is moved on the planting ground through the ground wheels 11. A synchronous drive component that drives the support shaft 21 to link with the driving shaft 16 is provided at the bottom of the base 1.

[0044] When the base 1 moves on the planting ground via the two ground wheels 11, the support shaft 21 moves along with it via the synchronous driving assembly, so that potatoes are sown while the base 1 moves, thereby improving the efficiency of the potato sowing process.

[0045] In addition, the synchronous drive assembly includes two transmission wheels 12. The two transmission wheels 12 are respectively sleeved on the outside of the support shaft 21 and the driving shaft 16, and the outside of the two transmission wheels 12 is sleeved with a transmission belt 10. The two transmission wheels 12 are respectively fixedly sleeved on the outside of the support shaft 21 and the driving shaft 16 through the mounting holes opened in the center. The two transmission wheels 12 are rotated synchronously through the transmission belt 10. When the base 1 moves on the planting ground through the two ground wheels 11, the ground wheels 11 drive the driving shaft 16 to rotate, and the driving shaft 16 drives the transmission belt 10 to move through the transmission wheel 12 sleeved on the outside. The transmission belt 10 drives the support shaft 21 to rotate through another transmission wheel 12, so that the chain 4 moves in a circular motion, thereby ensuring the efficiency of the potato sowing process.

[0046] Furthermore, a protective cover 24 is embedded in the inner wall of the seeding box 2, and the protective cover 24 is arranged outside the chain 4. The protective cover 24 is fixedly installed on the inner wall of the seeding box 2 where the seeding tube 8 is located, and the protective cover 24 blocks the connection gap between the seeding tube 8 and the seeding box 2. A space for potato feeding is reserved below the protective cover 24, that is, a certain distance is between the bottom of the protective cover 24 and the bottom of the inner wall of the seeding box 2. The protective cover 24 protects the chain 4 to prevent the potatoes inside from falling into the seeding box 2 and affecting the chain 4.

[0047] The inner wall of the seed box 2 is provided with a guide plate 5 which is inclined and is sleeved on the outside of the protective cover 24, and the guide plate 5 corresponds to the adjacent screening roller 6. The guide plate 5 is sleeved on the outer wall of the protective cover 24 in a close manner, and the guide plate 5 is obliquely fixed on the inner wall of the seed box 2 where the protective cover 24 is located. The other side of the guide plate 5 is flush with the adjacent screening roller 6, and the potatoes inside the seed box 2 are made to slide onto the screening roller 6 by the provided guide plate 5, so as to prevent the potatoes from being retained inside the seed box 2.

[0048] The furrowing member includes a support seat 14 fixedly mounted on the front side wall of the base 1, and a first movable column 17 is slidably arranged in the inner cavity of the support seat 14. A furrow opener 3 is fixedly mounted on the outer wall of the first movable column 17 near the bottom. The support seat 14 is fixedly fixed on the surface in front of the base 1, and a through hole penetrating the inner cavity is opened on the surface of the support seat 14, and the aperture of the through hole corresponds to the first movable column 17, so that the first movable column 17 slides in contact with the inner wall of the through hole. A locking bolt 28 is threadedly connected to the surface of the support seat 14, and the furrow opener 3 is driven by the first movable column 17 to adjust the furrowing depth of the sowing field, and then the locking bolt 28 is turned to lock the position of the furrow opener 3. Adjustment is made according to the furrowing depth, thereby bringing convenience to the sowing operation process of the relevant personnel.

[0049] The covering member includes a connecting seat 19 symmetrically arranged on both sides of the rear of the base 1, a fixing frame is fixedly installed at the tail of the base 1, and the connecting seat 19 is fixedly installed at both ends of the fixing frame. The inner cavity of the connecting seat 19 is slidably provided with a second movable column 18. A movable hole penetrating the inner cavity is provided on the surface of the connecting seat 19, and the aperture of the movable hole corresponds to the second movable column 18, so that the second movable column 18 slides in contact with the inner wall of the movable hole. The bottom of the second movable column 18 is rotatably provided with a covering plate 7, and a positioning bolt 20 is threadedly connected to the surface of the connecting seat 19.

[0050] A base 25 is fixedly installed at the bottom of the second movable column 18, a bearing is embedded in the base 25, a rotating shaft 26 is embedded in the bearing, and a covering plate 7 is fixedly sleeved on the outside of the rotating shaft 26 through a central mounting hole. Two covering plates 7 are relatively tilted and arranged at the tail of the base 1, and the position of the covering plates 7 is adjusted by the second movable column 18. Then, the position is locked by the positioning bolt 20, so that the covering plates 7 correspond to the furrow opener 3, so that after the potatoes are sown into the furrow, the potatoes are buried in the cultivated land through the two opposite covering plates 7.

[0051] A connecting frame 13 is fixedly mounted on the front side wall of the base 1. Two connecting frames 13 are fixed on the front surface of the base 1 in parallel with each other, and the two connecting frames 13 are symmetrically arranged on both sides of the support seat 14. The connecting frame 13 is connected to the tilling vehicle, thereby bringing convenience to the operation process of relevant personnel.

[0052] The present embodiment is a potato breeding sowing device, and its working principle is as follows: first, feed into the sowing box 2, and then adjust the positions of the furrow opener 3 and the soil cover plate 7 respectively. Then, the output shaft of the motor 23 drives one of the movable shafts 27 to rotate, and through the multiple meshing gears 32 sleeved on the outside, multiple parallel screening rollers 6 rotate simultaneously, so that the potatoes inside the sowing box 2 fall into the bottom of the sowing box 2 after screening.

[0053] Then, it is connected to the tillage vehicle through the connecting frame 13. When the tillage vehicle drives the base 1 to move, the ground wheel 11 drives the driving shaft 16 to rotate. The driving shaft 16 drives the transmission belt 10 to move through the external sleeve transmission wheel 12, and the transmission belt 10 drives the support shaft 21 to rotate through another transmission wheel 12. The support shaft 21 drives the sprocket 33 on the outer surface to rotate, and the sprocket 33 drives the sprocket 33 outside the central shaft 9 to rotate through the meshing chain 4 on the outer surface.

[0054] Then, as the chain 4 moves in a circular motion inside the seeding cylinder 8, the chain 4 drives the plurality of seeding bowls 22 to move in a continuous circular motion in sequence, and the potatoes are brought into the seeding cylinder 8 by the plurality of continuously moving seeding bowls 22, and are sown in sequence after passing through the seeding cylinder 8.

[0055] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0057] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A potato breeding sowing device, comprising a base (1), a furrowing member is arranged in front of the base (1), a soil covering member is symmetrically arranged at the rear of the base (1), and a sowing box (2) is fixedly installed on the top of the base (1), characterized in that: The side wall of the seeding box (2) is embedded with a feeding assembly for sequential sowing, and the feeding assembly passes through the inner cavity of the base (1) and extends to the bottom. The inner cavity of the seeding box (2) is provided with a screening roller (6) that rotates sequentially, and the outer wall of the seeding box (2) is provided with a linkage assembly that drives the screening roller (6) to rotate simultaneously.

2. A potato breeding sowing device according to claim 1, characterized in that: The linkage assembly comprises a movable shaft (27) rotatably arranged on the outer wall of the sowing box (2); the movable shaft (27) penetrates the outer wall of the sowing box (2) and is fixedly connected to the screening roller (6); the movable shaft (27) extends out of the outer wall of the sowing box (2) and is sleeved with a gear (32); two adjacent gears (32) are meshed with each other.

3. A potato breeding sowing device according to claim 1, characterized in that: The feeding assembly comprises a seeding barrel (8) embedded in the side wall of the seeding box (2), and the seeding barrel (8) passes through the inner cavity of the base (1) and extends to the bottom, a central shaft (9) is rotatably arranged above the seeding barrel (8), and a support shaft (21) is rotatably arranged below the base (1), sprockets (33) are sleeved on the outside of the support shaft (21) and the central shaft (9), and chains (4) are sleeved on the outside of the two sprockets (33), and the chains (4) are located inside the seeding barrel (8), and seeding bowls (22) are sequentially arranged on the chains (4).

4. A potato breeding sowing device according to claim 3, characterized in that: A driving shaft (16) is rotatably arranged at the bottom of the base (1), ground wheels (11) are arranged at both ends of the driving shaft (16), and a synchronous driving component is arranged at the bottom of the base (1) for driving the supporting shaft (21) to move in linkage with the driving shaft (16).

5. A potato breeding sowing device according to claim 4, characterized in that: The synchronous drive assembly comprises two transmission wheels (12), the two transmission wheels (12) are respectively sleeved on the outside of the support shaft (21) and the driving shaft (16), and the outside of the two transmission wheels (12) is sleeved with a transmission belt (10).

6. A potato breeding sowing device according to claim 5, characterized in that: A protective cover (24) is embedded and installed on the inner wall of the seed box (2), and the protective cover (24) is arranged to cover the outside of the chain (4).

7. A potato breeding sowing device according to claim 6, characterized in that: The inner wall of the seed box (2) is provided with a material guide plate (5) in an inclined manner. The material guide plate (5) is sleeved on the outside of the protective cover (24), and the material guide plate (5) corresponds to the adjacent screening roller (6).

8. A potato breeding sowing device according to claim 1, characterized in that: The trenching member comprises a support seat (14) fixedly mounted on the front side wall of the base (1); a first movable column (17) is slidably arranged in the inner cavity of the support seat (14); a trenching device (3) is fixedly mounted on the outer wall of the first movable column (17) adjacent to the bottom.

9. A potato breeding sowing device according to claim 1, characterized in that: The soil covering member comprises a connecting seat (19) symmetrically arranged on both sides of the rear of the base (1), a second movable column (18) is slidably arranged in the inner cavity of the connecting seat (19), and a soil covering plate (7) is rotatably arranged at the bottom of the second movable column (18).

10. A potato breeding sowing device according to claim 1, characterized in that: A connecting frame (13) is fixedly mounted on the front side wall of the base (1).

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